I could snake you could snake she could snake we could snake you could snake they could snake
Forma con V-ing
I could be snaking you could be snaking she could be snaking we could be snaking you could be snaking they could be snaking
Perfecto
I could have snaked you could have snaked she could have snaked we could have snaked you could have snaked they could have snaked
Perfecto con V-ing
I could have been snaking you could have been snaking she could have been snaking we could have been snaking you could have been snaking they could have been snaking
Negación
Forma simple
I could not snake you could not snake she could not snake we could not snake you could not snake they could not snake
Forma con V-ing
I could not be snaking you could not be snaking she could not be snaking we could not be snaking you could not be snaking they could not be snaking
Perfecto
I could not have snaked you could not have snaked she could not have snaked we could not have snaked you could not have snaked they could not have snaked
Perfecto con V-ing
I could not have been snaking you could not have been snaking she could not have been snaking we could not have been snaking you could not have been snaking they could not have been snaking
Forma interrogativa
Forma simple
could I snake? could you snake? could she snake? could we snake? could you snake? could they snake?
Forma con V-ing
could I be snaking? could you be snaking? could she be snaking? could we be snaking? could you be snaking? could they be snaking?
Perfecto
could I have snaked? could you have snaked? could she have snaked? could we have snaked? could you have snaked? could they have snaked?
Perfecto con V-ing
could I have been snaking? could you have been snaking? could she have been snaking? could we have been snaking? could you have been snaking? could they have been snaking?
Forma interro-negativa
Forma simple
could I not snake? could you not snake? could she not snake? could we not snake? could you not snake? could they not snake?
Forma con V-ing
could I not be snaking? could you not be snaking? could she not be snaking? could we not be snaking? could you not be snaking? could they not be snaking?
Perfecto
could I not have snaked? could you not have snaked? could she not have snaked? could we not have snaked? could you not have snaked? could they not have snaked?
Perfecto con V-ing
could I not have been snaking? could you not have been snaking? could she not have been snaking? could we not have been snaking? could you not have been snaking? could they not have been snaking?